package com.itzhoun.book;

/**
 * @author zhounan
 * @Title: StrategyBook
 * @Description: 图书策略
 * @date 16/5/2023上午 12:05
 */
public interface Strategy {


    /**
     * 计算价格
     * @param price
     * @param total
     * @return
     */
    double clac(double price, int total);
}
